Turbine.



PATENTED JUNE 9, 1908.

W. Q. WRIGHT.

TURBINE.

APPLICATION FILED JAN. 7, 1907.

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PATENTED JUNE 9, 1908.

W. Q. WRIGHT.

TURBINE;

APPLIOATIUNPILBD JAN. 7,.1907.

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No. 890,006. PATENTED JUNE 9.1908 W. Q. WRIGHT. TURBINE.

APPLICATION FILED JAN.7,1907.

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PATENTED JUNE 9, 1908. r

W, Q. WRIGHT.

TURBINE.

APPLICATION FILED JAN. 7, 1907.

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UNITED STATESJPATENT OFFICE.

WILLIAM QUINBY WRIGHT, OF SAN FRANCISCO, CALIFORNIA, A SSIGNOR TO THE WE LLMAN- SEAVER-MORGAN COMPANY, OF CLEVELAND, OHIO.

T 0 all whom it may concern:

Be it known that I, WILLIAM QUINBY WVRIGHT, a resident of San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Im rovements in Turbines; and I do hereby dec are the following to be a full, clear, and exact description of the invention, such as will enable others skilled in. the art to which it appertains to make and use the same.

My invention relates to improvements in turbines, and more particularly to balanced axial flow action turbines, the object of the invention being to provide a rotary element with two sets of axial flow buckets, with an improved nozzle or nozzles between them, having improved means for dividing the stream of water, so as to form two equal ets delivering the same to the buckets.

IVith this and other objects in view, the

invention consists in certain novel features of construction and combinations and ar rangements of parts as will be more fully hereinafter described and pointed out in the claims. In the accompanying drawings, Figure 1 is a plan view, partly broken away, illustrating my improvements. Fig. 2 is a view in section on the line thereof. Fig. 3 is a view in section on the line y y of Fig. 1, and Figs. 4, 5, and 6 are views of modifications.

1 represents an air tight casing, having an enlarged base portion 2, supporting standards 3, which latter are provided with bearings 4 for a shaft 5. The shaft 5 projects through. suitably packed openings in the sides of easing 1, and has my improved rotary element 6 secured thereon, inside the casing.

Therotary element 6 comprises a casting having two annular sets of axial flow buckets 7 thereon and providing an annular groove or space between the sets of buckets to accommodate nozzles 8. The nozzles 8 are connected by branch pipes 9 with water main 1(), and are preferably rectangular in form at the nozzle but gradually change into cylindrical form at the main, and a valve 11 is provided in the main to control the passage of water to the turbine.

At the discharge end of each nozzle, a deflecting wedge 12, is located and may consist of hollow bodies upon the outer ends of rods 13. The lower wedge may be provided Specification ofLetters Patent.

Application filed January 7, 1907.

Patented June 9, 1908.

Serial No. 351,159.

with a horizontal stifl'ening rib 12 and the upper wedge may be provided with a vertical web 12*. Each rod 13 extends through a cylinder 14 in line with the nozzle, and the rod of .the lower nozzle then projects out through the casing and is connected to one end of a lever 15, the latter pivoted between its ends to a bracket 16 secured to the outside of easing 1. The upper nozzle being disposed in a direction opposite to that of the lower nozzle, necessitates the employment of an additional. rod 17, secured to deflecting wedge 12 and passed through a packed joint 18 and connected to the upper end of lever 15, so that the movement of this lever serves to adjust the position of both deflecting wed es toward or away from the ends of the nozz es. The lower end of the lever 15 is made with a segmental enlargement 19, having gear teeth thereon, and a pinion 20 on a shaft 21, meshes with said gear teeth, so that by turning the shaft and pinion, the lever will be swung on its pivot to adjust the position of the deflecting wedges.

In both cylinders 14, hydraulic pistons 20 are located and secured on rods 13, and as said cylinders are open to the water in the main, the pistons 20 serve to balance the pressure and maintain the deflectors in proper position.

The principle involved in the nozzle for this turbine, consists of a wedge placed centrally in the nozzle with the edge toward the advancing water, and the wedge accomplishes two purposes, namely; it divides the water into two approximately rectangular jets and delivers the same to the two sets of buckets at the proper angle and by a movement of the wedge, it is possible to regulate the size of the two jets. In this way, the jets are made thinner or thicker, while the other dimensions remain the same, thereby giving nearly equal efficiency at different gate openings. There are a great many ways that a nozzle, using this principle to divert water to the buckets, can be constructed and used and I have illustrated in Figs. 4, 5, and 6, several modifications, all embodying the broad principle and I will now describe these modifications in detail.

In the modification shown in Fig. 4, a stationary wedge is provided at the end of the nozzle, and movable inside plates 22 are provided in the nozzle to regulate the thickness of the deflected jets of water.

Fig. 5 shows the wedge also stationary with adjustable plates 21 on the outside of the nozzle to adjust the thickness of the jets deflected thereby.

Fig. 6 illustrates a series-of nozzles 23 hav ing a central wheel 24 carrying all the wedge deflectors 25 and operated by a crank arm 26 and piston 27 to move the wheel and simultaneously adjust all the wedges.

A great many other changes might be made in the general form and arrangement of the parts described without departing from my invention, and hence, I do not restrict myself to the precise details set forth but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new and desire to secure by Letters-Patent is 1. A turbine comprising a rotary element having an annular series of buckets thereon, a nozzle having a lateral, rectangular jet outlet, means for deflecting water through said lateral jet outlet and maintaining the rectangular shape of said jet, and means for adjusting the deflecting means to control the passage ofwater through the rectangular jet outlet, and to close said rectangular jet outlet 2. A turbine, comprising a rotary element having two sets of annularly arranged axially disposed buckets thereon, a nozzle between the two sets of buckets and having lateral rectangular et outlets, and means for dividing the stream issuing from the nozzle into two rectangular jets and directing said jets axially against the sets of buckets and means for adjusting the thickness of said rectangular ets without changing the shape thereof.

8. In a turbine, the combination with a rotary element having two annular sets of buckets thereon, of a nozzle between the two sets of buckets having rectangular jet outlets, a wedge deflector dividing the stream from the nozzle into two rectangular jets and deflecting them against the two sets of buckets and means for adjusting said wedge relatively'to the outlets.

4. In a turbine, the combination with a rotary element having two annular sets of buckets thereon, of a water main, nozzles connected with the main and located between the sets of buckets said nozzles having lateral rectangular jet outlets, wedge deflectors at the ends of the nozzles dividing the stream into two rectangular jets and directing the jets against the respective sets of buckets and means for adjusting said wedge.

5. In a turbine, the combination with a rotary element having two annular sets of buckets thereon, of a water main, nozzles connected with the main and located between the sets of buckets, each of said nozzles having lateral rectangular jet outlets,

adjustable wedge deflectors in the ends of the respective nozzles dividing the streams into two jets and directing them against the sets of buckets, and means for simultaneously adjusting the wedges relatively to the jet outlets of the nozzles.

6. In a turbine, the combination with a rotary element having two annular sets of buckets thereon, of a nozzle between the sets of buckets having two rectangular jet outlets, a wedge deflector movable in the end of the nozzle dividing the stream into two rectangular jets and deflecting them against the sets of buckets, a cylinder, a piston therein, a rod connecting the piston and wedge deflector, and said cylinder open to the water in the nozzle and serving to balance the pressure against the deflector and maintain-the latter in the place adjusted.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

WILLIAM QUINBY WRIGHT. lVitnesses:

HENRY GUIoN PLUMMER, EARLE T. CLEVELAND. 

